U.S. Patent: 5588924 - Golf ball

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United States Patent	*5,588,924*
Sullivan , et al.	December 31, 1996

Golf ball

Abstract

A golf ball weighing no more than 1.62 ounces and having a mean outside diameter of at least 1.70 inches. The core compression of the ball and the cover hardness are selected so as to provide a finished ball having a P.G.A. compression of 70 or less and a coefficient of restitution from 0.780 to 0.825.

Inventors:	Sullivan; Michael J. (Chicopee, MA); Nealon; John L. (Springfield, MA); Nesbitt; R. Dennis (Westfield, MA)
Assignee:	Lisco, Inc. (Tampa, FL)
Appl. No.:	512356
Filed:	August 8, 1995

Current U.S. Class: 473/377; 473/384

Intern'l Class: A63B 037/12; A63B 037/14

Field of Search: 273/235 R,232 473/377,383,384,371,372,373,374,375,376

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Primary Examiner: Marlo; George J.
Attorney, Agent or Firm: Laubscher Laubscher

Parent Case Text

This application is a continuation-in-part of U.S. patent application Ser. No. 08/171,956 filed Dec. 22, 1993, now U.S. Pat. No. 5,503,397, which is a continuation of U.S. patent application Ser. No. 07/800,198, filed Nov. 27, 1991, now U. S. Pat. No. 5,273,287.

Claims

We claim:

1. A golf ball of improved playing characteristics comprising

a ball having a core and a cover and a mean outside diameter of at least 1.70 inches;

said ball weighing no more than substantially 1.62 ounces;

a dimple pattern comprising a plurality of dimples on the surface of said ball, said dimple pattern covering at least 70.0% of the surface of said ball;

said golf ball having a P.G.A. compression of 70 or less.

2. The golf ball of claim 1 wherein said ball has a P.G.A. compression of 69 or less.

3. The golf ball of claim 2 wherein the coefficient of restitution is from 0.780 to 0.825.

4. The golf ball of claim 2 wherein the coefficient of restitution is substantially 0.80.

5. The golf ball of claim 1 wherein said core has a P.G.A. compression of 48 or less, said cover has a Shore D hardness of 60 to 65, and said ball has a P.G.A. compression of 60 to 70.

6. The golf ball of claim 5 wherein the coefficient of restitution is from 0.780 to 0.825.

7. The golf ball of claim 5 wherein the coefficient of restitution is substantially 0.80.

8. The golf ball of claim 1 wherein said core has a P.G.A. compression of substantially 43, said cover has a Shore D hardness of substantially 64, and said ball has a P.G.A. compression of 60 to 70.

9. The golf ball of claim 1 wherein the coefficient of restitution is from 0.780 to 0.825.

10. The golf ball of claim 1 wherein the coefficient of restitution is substantially 0.80.

Description

This invention relates to golf balls. In particular, it relates to a two-piece golf ball having playability characteristics which are improved relative to state-of-the-art balls.

According to United States Golf Association (U.S.G.A.) rules, a golf ball may not have a weight in excess of 1.620 ounces or a diameter smaller than 1.680 inches. The initial velocity of U.S.G.A. "regulation" balls may not exceed 250 feet per second with a maximum tolerance of 2%. Initial velocity is measured on a standard machine kept by the U.S.G.A. A projection on a wheel rotating at a defined speed hits the test ball, and the length of time it takes the ball to traverse a set distance after impact is measured. U.S.G.A. regulations also require that a ball not travel a distance greater than 280 yards when hit by the U.S.G.A. outdoor driving machine under specified conditions. In addition to this specification, there is a tolerance of plus 4% and a 2% tolerance for test error.

These specifications limit how far a golf ball will travel when hit in several ways. Increasing the weight of a golf ball tends to increase the distance it will travel and lower the trajectory. A ball having greater momentum is better able to overcome drag. Reducing the diameter of the ball also has the effect of increasing the distance it will travel when hit. This is believed to occur primarily because a smaller ball has a smaller projected area and, thus, a lower drag when traveling through the air. Increasing initial velocity increases the distance the ball will travel.

The foregoing generalizations hold when the effect of size, weight, or initial velocity is measured in isolation. Flight characteristics (influenced by dimple pattern and ball rotation properties), club head speed, radius of gyration, and diverse other factors also influence the distance a ball will travel.

In the manufacture of top-grade golf balls for use by professional golfers and amateur golf enthusiasts, the distance a ball will travel when hit (hereinafter referred to as "distance") is an important design criterion. Since the U.S.G.A. rules were established, golf ball manufacturers have designed top-grade U.S.G.A. regulation balls to be as close to the maximum weight, minimum diameter, and maximum initial velocity as golf ball technology will permit. The distance a ball will travel when hit has, however, been improved by changes in raw materials and by alternations in dimple configuration.

Golf balls not conforming to U.S.G.A. specifications in various respects have been made in the United States. Prior to the effective date of the U.S.G.A. rules, balls of various weights, diameters, and resiliencies were common. So-called "rabbit balls, " which claim to exceed the U.S.G.A. initial velocity limitations, have also been offered for sale. Recently, oversized, overweight golf balls have been on sale for use as golf teaching aids (see U.S. Pat. No. 4,201,384 to Barber).

Oversized golf balls are also disclosed in New Zealand Patent 192,618 dated Jan. 1, 1980, issued to a predecessor of the present assignee. This patent discloses an oversized golf ball having a diameter between 1.700 and 1.730 inches and an oversized core of resilient material so as to increase the coefficient of restitution. Additionally, the patent discloses that the ball should include a cover having a thickness less than the cover thickness of conventional balls. The patent has no disclosure as to dimple size or the percentage of surface coverage by the dimples.

Golf balls made by Spalding in 1915 were of a diameter ranging from 1.630 inches to 1.710 inches. While these balls had small shallow dimples, they covered less than 50% of the surface of the ball. Additionally, as the diameter of the ball increased, the weight of the ball also increased.

Golf balls known as the LYNX JUMBO were also produced and sold in October of 1979. This ball had a diameter of substantially 1.80 inches. The dimples on the LYNX JUMBO balls had 336 Atti-type dimples with each dimple having a diameter of 0.147 inch and a depth of 0.0148 inch. With this dimple arrangement, 56.02% of the surface area of the ball was covered by the dimples. This ball met with little or no commercial success.

Top-grade golf balls sold in the United States may be classified as one of two types: two-piece or three-piece. The two-piece ball, exemplified by the balls sold by Spalding Corporation under the trademark TOP-FLITE, consists of a solid polymeric core and a separately formed cover. The so-called three-piece balls, exemplified by the balls sold under the trademark TITLEIST by the Acushnet Company, consist of a liquid (e.g., TITLEIST TOUR 384) or solid (e.g., TITLEIST DT) center, elastomeric thread windings about the center, and a cover. Although the nature of the cover can, in certain instances, make a significant contribution to the overall coefficient of restitution and initial velocity of a ball (see, for example, U.S. Pat. No. 3,819,768 to Molitor), the initial velocity of two-piece and three-piece balls is determined mainly by the coefficient of restitution of the core. The coefficient of restitution of the core of wound balls can be controlled within limits by regulating the winding tension and the thread and center composition. With respect to two-piece balls, the coefficient of restitution of the core is a function of the properties of the elastomer composition from which it is made. Solid cores today are typically molded using polybutadiene elastomers mixed with acrylate or methacrylate metal salts. High-density fillers such as zinc oxide are included in the core material in order to achieve the maximum U.S.G.A. weight limit.

Improvements in cover and core material formulations and changes in dimple patterns have more or less continually improved golf ball distance for the last 20 years. Top-grade golf balls, however, must meet several other important design criteria. To successfully compete in today's golf ball market, a golf ball should be resistant to cutting and must be finished well; it should hold a line in putting and should have good click and feel. With a well-designed ball, experienced players can better execute shots involving draw, fade, or abrupt stops, as the situation dictates.

SUMMARY OF THE INVENTION

The golf ball of the present invention provides an improvement over previously proposed oversized golf balls. The present ball, even though of a larger diameter of at least 1.70 inches, preferably uses substantially the same size core as a standard golf ball, with the difference in size being provided by additional thickness in the cover of the ball. The enlarged ball includes dimples which cover at least 70% of the surface of the ball, which enhances the flight characteristics of the ball. It has been found that large diameter shallow dimples further enhance the flight characteristics of the golf ball as opposed to the use of a large number of small diameter dimples.

Average and high-handicap golfers tend to have significantly lower average club head speeds than professional or low-handicap amateurs. The present invention provides a ball having improved playing characteristics for slower club head speeds. Such improvement is attained by providing a ball having a soft core and a selected cover hardness whereby the ball has a P.G.A. compression hardness of 70 or less. PGA compression is a standard used in the ball manufacturing community. The type of equipment used in measuring thus compression is shown and described in U.S. Pat. No. 2,278,416 issued Apr. 7, 1942 to Raphael Atli.

In addition to allowing the use of larger diameter dimples, the larger diameter ball provides a moment which is greater than the conventional ball. This greater moment reveals itself by having a lower backspin rate after impact than the conventional ball. Such a lower backspin rate contributes to straighter shots, greater efficiency in flight, and a lesser degree of energy loss on impact with the ground. On impact with the ground, all balls reverse their spin from backspin to over-spin; hence, having lower backspin on impact, less energy is absorbed in this reversal than with conventional balls. This is especially true with woods because of the lower trajectory resulting from a lower backspin. As a result, the ball strikes the ground at a more acute angle, adding increased roll or distance.

The present ball provides additional control due to the enlarged size of the ball and dimple coverage while still maintaining maximum performance standards as compared to a standard ball. It also provides a very soft feel due to the reduced core compression.

The advantages of the present invention will be more clearly understood from the following description taken together with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a partially broken-away view of an embodiment of the improved golf ball of the present invention;

FIG. 2 illustrates dimple diameter and depth measurements;

FIG. 3 discloses a golf ball of the dimensions as shown in FIG. 1 with a particular dimple configuration;

FIG. 4 is a schematic illustration showing dimple size and location of the repetitive sections of the golf ball of FIG. 3;

FIG. 5 is a modified dimple pattern of the present invention; and

FIG. 6 is a further modified dimple pattern of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The following description relates to several particular embodiments of the golf ball of the present invention, but the concept of the present invention is not to be limited to such embodiments. It should be noted that all of the specific dimensions set forth have a manufacturing tolerance of .+-.0.05%. Additionally, all of the balls have a weight no greater than 1.62 ounces.

The diameter of the ball is substantially between 1.71 and 1.80 inches. When dimples having different diameters and depths are used, weighted average dimple diameter is used in relation to the following parameters. Obviously, when all the dimples used are of the same diameter and depth, the weighted average diameter and depth is the same as each dimple diameter and depth. The weighted average diameter of the dimples covering the ball is substantially between 0.100 and 0.190 inch, preferably between 0.135 and 0.170 inch, with the preferred weighted average dimple diameter being between 0.139 and 0.149 inch. The weighted average depth of the dimples covering the ball is between 0.005 and 0.015 inch, preferably between 0.009 and 0.013 inch, with the preferred depth being between 0.010 and 0.011 inch.

Referring to FIG. 1, there is disclosed a ball having an oversized diameter D as compared to the diameter of a standard ball. The ball has a core of a diameter C and a cover of a thickness T. In the particular ball used for illustrative purposes, the nominal diameter of the ball is 1.717.+-.0.010 inches, the diameter of the core is 1.570 .+-.0.010 inches, and the cover thickness is 0.074.+-.0.010 inch.

The dimple pattern discussed above provides coverage of between 70% and 85% of the surface of the ball. It should be noted that if maximum possible coverage is desired, non-circular dimples can be used to fill in open surface areas which may remain after the basic dimple pattern is determined.

The core and cover hardness of the ball of the present invention are such that the P.G.A. compression is 70 or less. Although the ball is larger than the standard ball, the weight of the ball does not exceed 1.62 ounces.

The following static data is specific to one embodiment of the ball of the present invention:

    ______________________________________
    MOLDED CENTER CORE
    SIZE: AVERAGE           1.570" .+-. .005
    WEIGHT: AVERAGE (Grams)
                           36.3 .+-. 0.3
    COMPRESSION: RIEHLE     0.117 .+-. .005
    PGA                    43 .+-. 5
    C.O.R.: AVERAGE         0.770 .+-. .010
    MOLDED BALL
    SIZE: AVERAGE           1.717" .+-. 0.003
    WEIGHT: AVERAGE (Grams)
                           45.4 .+-. 0.200
    COMPRESSION: RIEHLE     0.100 .+-. 0.005
    PGA                    60 .+-. 5
    C.O.R.: AVERAGE         0.798 .+-. 0.005
    FINISHED BALL
    SIZE: AVERAGE           1.717 .+-. 0.003
    WEIGHT: AVERAGE (Grams)
                           45.4 .+-. 0.200
    COMPRESSION: RIEHLE     0.095 .+-. 0.005
    PGA                    65 .+-. 5
    C.O.R.: AVERAGE         0.800 .+-. 0.005
    CENTER CORE FORMULATION
    COMPOUND               PARTS
    ______________________________________
    CARIFLEX BR-1 220      100.0
    ZDA                     19.0
    ZnO                     11.0
    Zn STEARATE             15.0
    GROUND FLASH (T.G.)     20.0
    231 XL                  0.9
                           165.9
    Cariflex BR- 1200 is high Cis 1,4 polybutadiene
    rubber available from Shell Chemical.
    ZDA is Zinc Diacrylate available from Rockland React-Rite.
    ZnO is Zinc Oxide.
    Ground Flash is top-grade center flash.
    231 XL is 40% peroxide.
    COVER FORMULATION
    SURLYN 8320             10.0
    SURLYN 8120             4.0
    SURLYN 9910             54.5
    SURLYN 8940             22.0
    WHITE M.B.              9.5
                           100.0
    ______________________________________

The cover is made from various blends of ionomers sold by Exxon Chemical Co. and Dupont Chemical Co.

This formulation provides a medium modulus cover having a Shore D hardness of 64. As can be seen, applying this cover to the above molded center will increase the P.G.A. compression by .+-.22 points and increase the C.O.R. by .+-.0.023 points. The preferred range of the C.O.R. is from 0.780 to 0.825.

There follows the coordinates of the dimple pattern of the ball of FIGS. 3 and 4, indicating dimple location and diameter for each dimple on one of the hemispheres of the ball:

    __________________________________________________________________________
    DIMPLE
          LATITUDE       LONGITUDE      DIMPLE
    NUMBER
          Degrees
               Minutes
                    Seconds
                         Degrees
                              Minutes
                                   Seconds
                                        DIAMETER
    __________________________________________________________________________
     1     0    0    0    0   0    0    0.1450
     2     9   42   45    36  0    0    0.1450
     3     9   42   45   108  0    0    0.1450
     4     9   42   45   180  0    0    0.1450
     5     9   42   45   252  0    0    0.1450
     6     9   42   45   324  0    0    0.1450
     7    16   15   45    0   0    0    0.1450
     8    16   15   45    72  0    0    0.1450
     9    16   15   45   144  0    0    0.1450
     10   16   15   45   216  0    0    0.1450
     11   16   15   45   288  0    0    0.1450
     12   19   26    0    36  0    0    0.1450
     13   19   26    0   108  0    0    0.1450
     14   19   26    0   180  0    0    0.1450
     15   19   26    0   252  0    0    0.1450
     16   19   26    0   324  0    0    0.1450
     17   25   18    0    13  26   0    0.1450
     18   25   18    0    58  34   0    0.1450
     19   25   18    0    85  26   0    0.1450
     20   25   18    0   130  34   0    0.1450
     21   25   18    0   157  26   0    0.1450
     22   25   18    0   202  34   0    0.1450
     23   25   18    0   229  26   0    0.1450
     24   25   18    0   274  34   0    0.1450
     25   25   18    0   301  26   0    0.1450
     26   29   18    0   346  34   0    0.1450
     27   29   19    0    36  0    0    0.1450
     28   29   19    0   108  0    0    0.1450
     29   29   19    0   180  0    0    0.1450
     30   29   19    0   252  0    0    0.1450
     31   34   19    0   324  0    0    0.1450
     32   34   33   30    19  50   0    0.1450
     33   34   33   30    52  10   0    0.1450
     34   34   33   30    91  50   0    0.1450
     35   34   33   30   124  10   0    0.1450
     36   34   33   30   163  50   0    0.1450
     37   34   33   30   196  10   0    0.1450
     38   34   33   39   235  50   0    0.1450
     39   34   33   30   268  10   0    0.1450
     40   34   33   30   307  50   0    0.1450
     41   36   33   30   340  10   0    0.1450
     42   36   52   30    0   0    0    0.1690
     43   36   52   30    72  0    0    0.1690
     44   36   52   30   144  0    0    0.1690
     45   36   52   30   216  0    0    0.1690
     46   39   52   30   288  0    0    0.1690
     47   39    2   45    36  0    0    0.1450
     48   39    2   45   108  0    0    0.1450
     49   39    2   45   180  0    0    0.1450
     50   39    2   45   252  0    0    0.1450
     51   44    2   45   324  0    0    0.1450
     52   44    9   30    23  33   15   0.1450
     53   44    9   30    48  26   45   0.1450
     54   44    9   30    95  33   15   0.1450
     55   44    9   30   120  26   45   0.1450
     56   44    9   30   167  33   15   0.1450
     57   44    9   30   192  26   45   0.1450
     58   44    9   30   239  33   15   0.1450
     59   44    9   30   264  26   45   0.1450
     60   44    9   30   311  33   15   0.1450
     61   44    9   30   336  26   45   0.1450
     62   46   50   15    8   34   45   0.1690
     63   46   50   15    63  25   15   0.1690
     64   46   50   15    80  34   45   0.1690
     65   46   50   15   135  25   15   0.1690
     66   46   50   15   152  34   45   0.1690
     67   46   50   15   207  25   15   0.1690
     68   46   50   15   224  34   45   0.1690
     69   46   50   15   279  25   15   0.1690
     70   46   50   15   296  34   45   0.1690
     71   46   50   15   351  25   15   0.1690
     72   48   55    0    36  0    0    0.1450
     73   48   55    0   108  0    0    0.1450
     74   48   55    0   180  0    0    0.1450
     75   48   55    0   252  0    0    0.1450
     76   48   55    0   324  0    0    0.1450
     77   53   50   15    25  15   45   0.1450
     78   53   50   15    46  44   15   0.1450
     79   53   50   15    97  15   45   0.1450
     80   53   50   15   118  44   15   0.1450
     81   53   50   15   169  15   45   0.1450
     82   53   50   15   190  44   15   0.1450
     83   53   50   15   241  15   45   0.1450
     84   53   50   15   262  44   15   0.1450
     85   53   50   15   313  15   45   0.1450
     86   53   50   15   334  44   15   0.1450
     87   56   37   30    0   0    0    0.1690
     88   56   37   30    72  0    0    0.1690
     89   56   37   30   144  0    0    0.1690
     90   56   37   30   216  0    0    0.1690
     91   56   37   30   288  0    0    0.1690
     92   57   12    0    13  39   0    0.1570
     93   57   12    0    58  21   0    0.1570
     94   57   12    0    85  39   0    0.1570
     95   57   12    0   130  21   0    0.1570
     96   57   12    0   157  39   0    0.1570
     97   57   12    0   202  21   0    0.1570
     98   57   12    0   229  39   0    0.1570
     99   57   12    0   274  21   0    0.1570
    100   57   12    0   301  39   0    0.1570
    101   58   12    0   346  21   0    0.1570
    102   58   39   15    36  0    0    0.1450
    103   58   39   15   108  0    0    0.1450
    104   58   39   15   180  0    0    0.1450
    105   58   39   15   252  0    0    0.1450
    106   58   39   15   324  0    0    0.1450
    107   63   51   30    26  25   15   0.1450
    108   63   51   30    45  34   45   0.1450
    109   63   51   30    98  25   15   0.1450
    110   63   51   30   117  34   45   0.1450
    111   63   51   30   170  25   15   0.1450
    112   63   51   30   189  34   45   0.1450
    113   63   51   30   242  25   15   0.1450
    114   63   51   30   261  34   45   0.1450
    115   63   51   30   314  25   15   0.1450
    116   63   51   30   333  34   45   0.1450
    117   66   36    0    5   24   0    0.1450
    118   66   36    0    66  36   0    0.1450
    119   66   36    0    77  24   0    0.1450
    120   66   36    0   138  36   0    0.1450
    121   66   36    0   149  24   0    0.1450
    122   66   36    0   210  36   0    0.1450
    123   66   36    0   221  24   0    0.1450
    124   66   36    0   282  36   0    0.1450
    125   66   36    0   293  24   0    0.1450
    126   66   36    0   354  36   0    0.1450
    127   67    4   30    16  5    30   0.1450
    128   67    4   30    55  54   30   0.1450
    129   67    4   30    88  5    30   0.1450
    130   67    4   30   127  54   30   0.1450
    131   67    4   30   160  5    30   0.1450
    132   67    4   30   199  54   30   0.1450
    133   67    4   30   232  5    30   0.1450
    134   67    4   30   271  54   30   0.1450
    135   67    4   30   304  5    30   0.1450
    136   67    4   30   343  54   30   0.1450
    137   68   20   30    36  0    0    0.1450
    138   68   20   30   108  0    0    0.1450
    139   68   20   30   180  0    0    0.1450
    140   68   20   30   252  0    0    0.1450
    141   68   20   30   324  0    0    0.1450
    142   75   24   30    0   0    0    0.1450
    143   75   24   30    72  0    0    0.1450
    144   75   24   30   144  0    0    0.1450
    145   75   24   30   216  0    0    0.1450
    146   75   24   30   288  0    0    0.1450
    147   75   42    0    10  20   45   0.1450
    148   75   42    0    61  39   15   0.1450
    149   75   42    0    82  20   45   0.1450
    150   75   42    0   133  39   15   0.1450
    151   75   42    0   154  20   45   0.1450
    152   75   42    0   205  39   15   0.1450
    153   75   42    0   226  20   45   0.1450
    154   75   42    0   277  39   15   0.1450
    155   75   42    0   298  20   45   0.1450
    156   75   42    0   349  39   15   0.1450
    157   76   14    0    20  20   0    0.1450
    158   76   14    0    51  40   0    0.1450
    159   76   14    0    92  20   0    0.1450
    160   76   14    0   123  40   0    0.1450
    161   76   14    0   164  20   0    0.1450
    162   76   14    0   195  40   0    0.1450
    163   76   14    0   236  20   0    0.1450
    164   76   14    0   267  40   0    0.1450
    165   76   14    0   308  20   0    0.1450
    166   76   14    0   339  40   0    0.1450
    167   76   26   15    30  22   15   0.1450
    168   76   26   15    41  37   45   0.1450
    169   76   26   15   102  22   15   0.1450
    170   76   26   15   113  37   45   0.1450
    171   76   26   15   174  22   15   0.1450
    172   76   26   15   185  37   45   0.1450
    173   76   26   15   246  22   15   0.1450
    174   76   26   15   257  37   45   0.1450
    175   76   26   15   318  22   15   0.1450
    176   76   26   15   329  37   45   0.1450
    177   86    1   15    5   8    30   0.1450
    178   86    1   15    15  25   45   0.1450
    179   85    1   15    25  42   45   0.1450
    180   85    1   15    36  0    0    0.1450
    181   85    1   15    46  17   15   0.1450
    182   85    1   15    56  34   15   0.1450
    183   85    1   15    66  51   30   0.1450
    184   85    1   15    77  8    30   0.1450
    185   85    1   15    87  25   45   0.1450
    186   85    1   15    97  42   45   0.1450
    187   85    1   15    108 0    0    0.1450
    188   85    1   15   118  17   15   0.1450
    189   85    1   15   128  34   15   0.1450
    190   85    1   15   138  51   30   0.1450
    191   85    1   15   149  8    30   0.1450
    192   85    1   15   159  25   45   0.1450
    193   85    1   15   169  42   45   0.1450
    194   85    1   15   180  0     0   0.1450
    195   85    1   15   190  17   15   0.1450
    196   85    1   15   200  34   15   0.1450
    197   85    1   15   210  51   30   0.1450
    198   85    1   15   221  8    30   0.1450
    199   85    1   15   231  25   45   0.1450
    200   85    1   15   241  42   45   0.1450
    201   85    1   15   252  0     0   0.1450
    202   85    1   15   262  17   15   0.1450
    203   85    1   15   272  34   15   0.1450
    204   85    1   15   282  51   30   0.1450
    205   85    1   15   293  8    30   0.1450
    206   85    1   15   303  25   45   0.1450
    207   85    1   15   313  42   45   0.1450
    208   85    1   15   324  0     0   0.1450
    209   85    1   15   334  17   15   0.1450
    210   85    1   15   344  34   15   0.1450
    211   85    1   15   354  51   30   0.1450
    __________________________________________________________________________

The ball of FIGS. 3 and 4 illustrates that the dimple pattern on the ball is made up of a plurality of triangles 15, 17 and 19 which comprise a modified icosahedron. The dimples are arranged on the ball in order to obtain maximum surface coverage of the ball, with the largest dimples 33, intermediate dimples 35, and smaller dimples 31 being located as shown relative to lines 15, 17, and 19 of the triangles. Lines 21, 23, and 24 are extensions of a further triangle to the equatorial line of the ball. This is the same arrangement of dimples as that of the Spalding TOP-FLITE PLUS II ball shown and described in U.S. Pat. No. 5,018,741, assigned to the assignee of the present invention. The description and the manner of locating the dimples as set forth in that application is incorporated herein.

A further ball which uses the same basic pattern of FIGS. 3 and 4 has 10 of the largest diameter dimples, 50 of the intermediate size dimples, and 362 of the smallest diameter dimples. The largest dimple diameter is 0.169 inch with a depth of 0.0123 inch, the intermediate dimple diameter is 0.157 inch with a depth of 0.0123 inch, and the smallest dimple diameter is 0.145 inch with a depth of 0.0101 inch. Thus, the dimple depths of the three different diameter dimples remain the same as the ball of FIGS. 2 and 3. This modification provides a coverage with no dimple overlap while maintaining a 77.4% coverage of the surface area of the ball. The weighted average dimple diameter for this ball is 0.1470 inch and the weighted average dimple depth is 0.0104 inch.

Still another ball which uses the same basic pattern of FIGS. 3 and 4 has 10 of the largest diameter dimples, 50 of the intermediate size dimples, and 362 of the smallest diameter dimples. This pattern has a modified dimple diameter wherein the largest diameter is 0.169 inch with a depth of 0.0128 inch, the intermediate dimple diameter is 0.157 inch with a depth of 0.0128 inch, and the smallest dimple diameter is 0.145 inch. In this ball, 222 of the smallest diameter dimples nearest the poles have a depth of 0.0106 inch and the remaining 140 of the smallest diameter dimples have a depth of 0.0096 inch. The remaining intermediate and large diameter dimples have a depth of 0.0128 inch. This modification provides a ball with no dimple overlap while maintaining a 77.4% coverage of the surface area of the ball. The weighted average dimple diameter for this ball is 0.1470 inch and the weighted average dimple depth is 0.01058 inch.

There follows the coordinates for the dimple pattern of the above two balls having 10 large dimples, 50 intermediate dimples, and 362 small dimples:

    __________________________________________________________________________
    DIMPLE
          LATITUDE       LONGITUDE      DIMPLE
    NUMBER
          Degrees
               Minutes
                    Seconds
                         Degrees
                              Minutes
                                   Seconds
                                        DIAMETER
    __________________________________________________________________________
     1     0    0    0    0   0    0    0.145
     2    9    42   45    36  0    0    0.145
     3    9    42   45   108  0    0    0.145
     4    9    42   45   180  0    0    0.145
     5    9    42   45   252  0    0    0.145
     6    9    42   45   324  0    0    0.145
     7    16   15   45    0   0    0    0.145
     8    16   15   45    72  0    0    0.145
     9    16   15   45   144  0    0    0.145
     10   16   15   45   216  0    0    0.145
     11   16   15   45   288  0    0    0.145
     12   19   26    0    36  0    0    0.145
     13   19   26    0   108  0    0    0.145
     14   19   26    0   180  0    0    0.145
     15   19   16    0   252  0    0    0.145
     16   119  26    0   324  0    0    0.145
     17   25   18    0    13  26   0    0.145
     18   25   18    0    58  34   0    0.145
     19   25   18    0    85  26   0    0.145
     20   25   18    0   130  34   0    0.145
     21   25   18    0   157  26   0    0.145
     22   25   18    0   202  34   0    0.145
     23   25   18    0   229  26   0    0.145
     24   25   18    0   274  34   0    0.145
     25   25   18    0   301  26   0    0.145
     26   25   18    0   346  34   0    0.145
     27   29   19    0    36  0    0    0.145
     28   29   19    0   108  0    0    0.145
     29   29   19    0   180  0    0    0.145
     30   29   19    0   252  0    0    0.145
     31   29   19    0   324  0    0    0.145
     32   34   33   30    19  50   0    0.145
     33   34   33   30    52  10   0    0.145
     34   34   33   30    91  50   0    0.145
     35   34   33   39   124  10   0    0.145
     36   34   33   30   163  50   0    0.145
     37   34   33   30   196  10   0    0.145
     38   34   33   30   235  50   0    0.145
     39   34   33   30   268  10   0    0.145
     40   34   33   30   307  50   0    0.145
     41   34   33   30   340  10   0    0.157
     42   38    5    0    0   0    0    0.157
     43   38    5    0    72  0    0    0.157
     44   38    5    0   144  0    0    0.157
     45   38    5    0   216  0    0    0.157
     46   38    5    0   288  0    0    0.157
     47   39    2   45    36  0    0    0.145
     48   39    2   45   108  0    0    0.145
     49   39    2   45   180  0    0    0.145
     50   39    2   45   252  0    0    0.145
     51   39    2   45   324  0    0    0.145
     52   44    9   30    23  33   15   0.145
     53   44    9   30    48  26   45   0.145
     54   44    9   30    95  33   15   0.145
     55   44    9   30   120  26   45   0.145
     56   44    9   30   167  33   15   0.145
     57   44    9   30   192  26   45   0.145
     58   44    9   30   239  33   15   0.145
     59   44    8   39   264  26   45   0.145
     60   44    9   30   311  33   15   0.145
     61   44    9   30   336  26   45   0.145
     62   47   33   30    7   34   0    0.157
     63   47   33   30    64  26   0    0.157
     64   47   33   30    79  34   0    0.157
     65   47   33   30   136  26   0    0.157
     66   47   33   30   151  34   0    0.157
     67   47   33   30   208  26   0    0.157
     68   47   33   30   223  34   0    0.157
     69   47   33   30   280  26   0    0.157
     70   47   33   30   295  34   0    0.157
     71   47   33   30   352  26   0    0.157
     72   48   55    0    36  0    0    0.145
     73   48   55    0   108  0    0    0.145
     74   48   55    0   180  0    0    0.145
     75   48   55    0   252  0    0    0.145
     76   48   55    0   324  0    0    0.145
     77   53   50   15    25  15   15   0.145
     78   53   50   15    46  44   15   0.145
     79   53   50   15    97  15   45   0.145
     80   53   50   15   118  44   15   0.145
     81   53   50   15   169  15   45   0.145
     82   53   50   15   190  44   15   0.145
     83   53   50   15   241  15   45   0.145
     84   53   50   15   262  44   15   0.145
     85   53   50   15   313  15   45   0.145
     86   53   50   15   334  44   15   0.145
     87   57   12    0    13  39   0    0.157
     88   57   12    0    58  21   0    0.157
     89   57   12    0    85  39   0    0.157
     90   57   12    0   130  21   0    0.157
     91   57   12    0   157  39   0    0.157
     92   57   12    0   202  21   0    0.157
     93   57   12    0   229  39   0    0.157
     94   57   12    0   274  21   0    0.157
     95   57   12    0   301  39   0    0.157
     96   57   12    0   346  21   0    0.157
     97   58   35   15    0   0    0    0.169
     98   58   35   15    72  0    0    0.169
     99   58   35   15   144  0    0    0.169
    100   58   35   15   216  0    0    0.169
    101   58   35   15   288  0    0    0.169
    102   58   39   15   36   0    0    0.145
    103   58   39   15   108  0    0    0.145
    104   58   39   15   180  0    0    0.145
    105   58   39   15   252  0    0    0.145
    106   58   39   15   324  0    0    0.145
    107   63   51   30    26  25   15   0.145
    108   63   51   30    45  34   45   0.145
    109   63   51   30    98  25   15   0.145
    110   63   51   30   117  34   45   0.145
    111   63   51   30   170  25   15   0.145
    112   63   51   30   189  34   45   0.145
    113   63   51   30   242  25   15   0.145
    114   63   51   30   261  34   45   0.145
    115   63   51   30   314  25   15   0.145
    116   63   51   30   333  34   45   0.145
    117   67    4   30    16  5    30   0.145
    118   67    4   30    55  54   30   0.145
    119   67    4   30    88  5    30   0.145
    120   67    4   30   127  54   30   0.145
    121   67    4   30   160  5    30   0.145
    122   67    4   30   199  54   30   0.145
    123   67    4   30   232  5    30   0.145
    124   67    4   30   271  54   30   0.145
    125   67    4   30   304  5    30   0.145
    126   67    4   30   343  54   30   0.145
    127   67   56    0    5   39   0    0.145
    128   67   56    0    66  21   0    0.145
    129   67   56    0    77  39   0    0.145
    130   67   56    0   138  21   0    0.145
    131   67   56    0   149  39   0    0.145
    132   67   56    0   210  21   0    0.145
    133   67   56    0   221  39   0    0.145
    134   67   56    0   282  21   0    0.145
    135   67   56    0   283  39   0    0.145
    136   67   56    0   354  21   0    0.145
    137   68   20   30    36  0    0    0.145
    138   68   20   30   108  0    0    0.145
    139   68   20   30   180  0    0    0.145
    140   68   20   30   252  0    0    0.145
    141   68   20   30   324  0    0    0.145
    142   76   14    0    20  20   0    0.145
    143   76   14    0    51  40   0    0.145
    144   76   14    0    92  20   0    0.145
    145   76   14    0   123  40   0    0.145
    146   76   14    0   164  20   0    0.145
    147   76   14    0   195  40   0    0.145
    148   76   14    0   236  20   0    0.145
    149   76   14    0   267  40   0    0.145
    150   76   14    0   308  20   0    0.145
    151   76   14    0   339  40   0    0.145
    152   76   14   45    0   0    0    0.145
    153   76   25   45    72  0    0    0.145
    154   76   25   45   144  0    0    0.145
    155   76   25   45   216  0    0    0.145
    156   76   25   45   288  0    0    0.145
    157   76   25   15    30  22   15   0.145
    158   76   26   15    41  37   45   0.145
    159   76   26   15   102  22   15   0.145
    160   76   26   15   113  37   45   0.145
    161   76   26   15   174  22   15   0.145
    162   76   26   15   185  37   45   0.145
    163   76   26   15   246  22   15   0.145
    164   76   26   15   257  37   45   0.145
    165   76   26   15   318  22   15   0.145
    166   76   26   15   329  37   45   0.145
    167   76   42   45    10  18   0    0.145
    168   76   42   45    82  18   0    0.145
    169   76   42   45   154  18   0    0.145
    170   76   42   45   226  18   0    0.145
    171   76   42   45   298  18   0    0.145
    172   76   43   15    61  42   0    0.145
    173   76   43   15   133  42   0    0.145
    174   76   43   15   205  42   0    0.145
    175   76   43   15   277  42   0    0.145
    176   76   43   15   349  42   0    0.145
    177   85    1   15    5   8    30   0.145
    178   85    1   15    15  25   45   0.145
    179   85    1   15    25  42   45   0.145
    180   85    1   15    36  0    0    0.145
    181   85    1   15    46  17   15   0.145
    182   85    1   15    56  34   15   0.145
    183   85    1   15    66  51   30   0.145
    184   85    1   15    77  8    30   0 145
    185   85    1   15    87  25   45   0.145
    186   85    1   15    97  42   45   0.145
    187   85    1   15   108  0    0    0.145
    188   85    1   15   118  17   15   0.145
    189   85    1   15   128  34   15   0.145
    190   85    1   15   138  51   30   0.145
    191   85    1   15   149  8    30   0.145
    192   85    1   15   159  25   45   0.145
    193   85    1   15   169  42   45   0.145
    194   85    1   15   180  0    0    0.145
    195   85    1   15   190  17   15   0.145
    196   85    1   15   200  34   15   0.145
    197   85    1   15   210  51   30   0.145
    198   85    1   15   221  8    30   0.145
    199   85    1   15   231  25   45   0.145
    200   85    1   15   241  42   45   0.145
    201   85    1   15   252  0    0    0.145
    202   85    1   15   262  17   15   0.145
    203   85    1   15   272  34   15   0.145
    204   85    1   15   282  51   30   0.145
    204   85    1   15   293  8    30   0.145
    206   85    1   15   303  25   45   0.145
    207   85    1   15   313  42   45   0.145
    208   85    1   15   324  0    0    0.145
    209   85    1   15   334  17   15   0.145
    210   85    1   15   344  34   15   0.145
    211   85    1   15   354  51   30   0.145
    __________________________________________________________________________

Yet another ball which uses the same basic pattern and dimple diameter of FIGS. 3 and 4 is modified as to dimple depth. The dimples on this ball have the same coordinates as the ball of FIGS. 2 and 3. In this ball, 222 of the smallest diameter dimples nearest the poles have a depth of 0.0106 inch and the remaining 140 of the smallest diameter dimples have a depth of 0.0096 inch. This modification provides a coverage with no dimple overlap while maintaining a 78.4% coverage of the surface area of the ball. The weighted average dimple diameter for this ball is 0.1478 inch and the weighted average dimple depth is 0.01058 inch.

A further modification is shown in FIG. 5. This golf ball has 410 dimples comprising 138 dimples having a diameter of 0.169 inch and a depth of 0.0116 inch, 160 dimples having a diameter of 0.143 inch and a depth of 0.0101 inch, and 112 dimples having a diameter of 0.112 inch and a depth of 0.0077 inch. The configuration of the dimples comprises a dimple-free equatorial line E--E dividing the ball into two hemispheres having substantially identical dimple patterns. The dimple pattern of each hemisphere comprises a first plurality of dimples extending in four spaced clockwise arcs between the pole and the equator of each hemisphere, a second plurality of dimples extending in four spaced counterclockwise arcs between the pole and equator of each hemisphere, and a third plurality of dimples filling the surface area between the first and second plurality of dimples. In this ball, none of the dimples overlap. This pattern provides a weighted average dimple diameter of 0.1433 inch, a weighted average dimple depth of 0.010 inch, and a 73.1% coverage of the surface of the ball.

There follows the coordinates of the 410 dimple pattern ball:

    __________________________________________________________________________
    DIMPLE
          LATITUDE       LONGITUDE      DIMPLE
    NUMBER
          Degrees
               Minutes
                    Seconds
                         Degrees
                              Minutes
                                   Seconds
                                        DIAMETER
    __________________________________________________________________________
     1     0   0    0    0    0    0    0.169
     2    11   53   30   0    0    0    0.112
     3    11   53   30   45   0    0    0.143
     4    11   53   30   90   0    0    0.112
     5    11   53   30   135  0    0    0.143
     6    11   53   30   180  0    0    0.112
     7    11   53   30   225  0    0    0.143
     8    11   53   30   270  0    0    0.112
     9    11   53   30   315  0    0    0.143
     10   18   32   0    19   6    45   0.112
     11   18   32   0    70   53   15   0.112
     12   18   32   0    109  6    45   0.112
     13   18   32   0    160  53   15   0.112
     14   18   32   0    199  6    45   0.112
     15   18   32   0    250  53   15   0.112
     16   18   32   0    289  6    45   0.112
     17   18   32   0    340  53   15   0.112
     18   22   24   0    45   0    0    0.169
     19   22   24   0    135  0    0    0.169
     20   22   24   0    225  0    0    0.169
     21   22   24   0    315  0    0    0.169
     22   23   27   45   0    0    0    0.112
     23   23   27   45   90   0    0    0.112
     24   23   27   45   180  0    0    0.112
     25   23   27   45   270  0    0    0.112
     26   28   45   15   25   39   0    0.143
     27   28   45   15   64   21   0    0.143
     28   28   45   15   115  39   0    0.143
     29   28   45   15   154  21   0    0.143
     30   28   45   15   205  39   0    0.143
     31   28   45   15   244  21   0    0.143
     32   28   45   15   295  39   0    0.143
     33   28   45   15   334  21   0    0.143
     34   30   53   45   8    17   0    0.112
     35   30   53   45   81   43   0    0.112
     36   30   53   45   98   17   0    0.112
     37   30   53   45   171  43   0    0.112
     38   30   53   45   188  17   0    0.112
     39   30   53   45   261  43   0    0.112
     40   30   53   45   278  17   0    0.112
     41   30   53   45   351  43   0    0.112
     42   33   55   45   45   0    0    0.169
     43   33   55   45   135  0    0    0.169
     44   33   55   45   225  0    0    0.169
     45   33   55   45   315  0    0    0.169
     46   37   40   15   0    0    0    0.112
     47   37   40   15   90   0    0    0.112
     48   37   40   15   180  0    0    0.112
     49   37   40   15   270  0    0    0.112
     50   38   13   15   28   43   0    0.143
     51   38   13   15   61   17   0    0.143
     52   38   13   15   118  43   0    0.143
     53   38   13   15   151  17   0    0.143
     54   38   13   15   208  43   0    0.143
     55   38   13   15   241  17   0    0.143
     56   38   13   15   298  43   0    0.143
     57   38   13   15   331  17   0    0.143
     58   41   7    30   13   57   0    0.143
     59   41   7    30   76   3    0    0.143
     60   41   7    30   103  57   0    0.143
     61   41   7    30   166  3    0    0.143
     62   41   7    30   193  57   0    0.143
     63   41   7    30   256  3    0    0.143
     64   41   7    30   283  57   0    0.143
     65   41   7    30   346  3    0    0.143
     66   44   31   0    39   0    15   0.112
     67   44   31   0    50   59   45   0.112
     68   44   31   0    129  0    15   0.112
     69   44   31   0    140  59   45   0.112
     70   44   31   0    219  0    15   0.112
     71   44   31   0    230  59   45   0.112
     72   44   31   0    309  0    15   0.112
     73   44   31   0    320  59   45   0.112
     74   47   47   15   0    0    0    0.143
     75   47   47   15   90   0    0    0.143
     76   47   47   15   180  0    0    0.143
     77   47   47   15   270  0    0    0.143
     78   49   27   0    21   28   45   0.143
     79   49   27   0    68   31   15   0.143
     80   49   27   0    111  28   45   0.143
     81   49   27   0    158  31   15   0.143
     82   49   27   0    201  28   45   0.143
     83   49   27   0    248  31   15   0.143
     84   49   27   0    291  28   45   0.143
     85   49   27   0    338  31   15   0.143
     86   52   21   45   33   13   15   0.143
     87   52   21   45   56   46   45   0.143
     88   52   21   45   123  13   15   0.143
     89   52   21   45   146  46   45   0.143
     90   52   21   45   213  13   15   0.143
     91   52   21   45   236  46   45   0.143
     92   52   21   45   303  13   15   0.143
     93   52   21   45   326  46   45   0.143
     94   53   30   15   10   15   45   0.143
     95   53   30   15   79   44   15   0.143
     96   53   30   15   100  15   45   0.143
     97   53   30   15   169  44   15   0.143
     98   53   30   15   190  15   45   0.143
     99   53   30   15   259  44   15   0.143
    100   53   30   15   280  15   45   0.143
    101   53   30   15   349  44   15   0.143
    102   56   28   15   45   0    0    0.169
    103   56   28   15   135  0    0    0.169
    104   56   28   15   225  0    0    0.169
    105   56   28   15   315  0    0    0.169
    106   58   51   0    0    0    0    0.143
    107   58   51   0    90   0    0    0.143
    108   58   51   0    180  0    0    0.143
    109   58   51   0    270  0    0    0.143
    110   61   8    30   24   2    0    0.169
    111   61   8    30   65   58   0    0.169
    112   61   8    30   114  2    0    0.169
    113   61   8    30   155  58   0    0.169
    114   61   8    30   204  2    0    0.169
    115   61   8    30   245  58   0    0.169
    116   61   8    30   294  2    0    0.169
    117   61   8    30   335  58   0    0.169
    118   64   13   0    11   20   30   0.169
    119   64   13   0    78   39   30   0.169
    120   64   13   0    101  20   30   0.169
    121   64   13   0    168  39   30   0.169
    122   64   13   0    191  20   30   0.169
    123   64   13   0    258  39   30   0.169
    124   64   13   0    281  20   30   0.169
    125   64   13   0    348  39   30   0.169
    126   65   4    15   34   34   15   0.112
    127   65   4    15   55   25   45   0.112
    128   65   4    15   124  34   15   0.112
    129   65   4    15   145  25   45   0.112
    130   65   4    15   214  34   15   0.112
    131   65   4    15   235  25   45   0.112
    132   65   4    15   304  34   15   0.112
    133   65   4    15   325  25   45   0.112
    134   67   50   15   45   0    0    0.169
    135   67   50   15   135  0    0    0.169
    136   67   50   15   225  0    0    0.169
    137   67   50   15   315  0    0    0.169
    138   69   25   30   0    0    0    0.143
    139   69   25   30   90   0    0    0.143
    140   69   25   30   180  0    0    0.143
    141   69   25   30   270  0    0    0.143
    142   72   42   30   21   18   0    0.169
    143   72   42   30   68   42   0    0.169
    144   72   42   30   111  18   0    0.169
    145   72   42   30   158  42   0    0.169
    146   72   42   30   201  18   0    0.169
    147   72   42   30   248  42   0    0.169
    148   72   42   30   291  18   0    0.169
    149   72   42   30   338  42   0    0.169
    150   74   42   0    33   5    0    0.169
    151   74   42   0    56   55   0    0.169
    152   74   42   0    123  5    0    0.169
    153   74   42   0    146  55   0    0.169
    154   74   42   0    213  5    0    0.169
    155   74   42   0    236  55   0    0.169
    156   74   42   0    303  5    0    0.169
    157   74   42   0    326  55   0    0.169
    158   75   34   0    9    26   30   0.169
    159   75   34   0    80   33   30   0.169
    160   75   34   0    99   26   30   0.169
    161   75   34   0    170  33   30   0.169
    162   75   34   0    189  26   30   0.169
    163   75   34   0    260  33   30   0.169
    164   75   34   0    279  26   30   0.169
    165   75   34   0    350  33   30   0.169
    166   79   8    15   45   0    0    0.169
    167   79   8    15   135  0    0    0.169
    168   79   8    15   225  0    0    0.169
    169   79   8    15   315  0    0    0.169
    170   79   18   0    0    0    0    0.112
    171   79   18   0    90   0    0    0.112
    172   79   18   0    180  0    0    0.112
    173   79   18   0    270  0    0    0.112
    174   83   47   15   24   36   45   0.169
    175   83   47   15   65   23   15   0.169
    176   83   47   15   114  36   45   0.169
    177   83   47   15   155  23   15   0.169
    178   83   47   15   204  36   45   0.169
    179   83   47   15   245  23   15   0.169
    180   83   47   15   294  36   45   0.169
    181   83   47   15   335  23   15   0.169
    182   84   46   45   35   54   15   0.143
    183   84   46   45   54   5    45   0.143
    184   84   46   45   125  54   15   0.143
    185   84   46   45   144  5    45   0.143
    186   84   46   45   215  54   15   0.143
    187   84   46   45   234  5    45   0.143
    188   84   46   45   305  54   15   0.143
    189   84   46   45   324  5    45   0.143
    190   85   0    15   14   6    30   0.143
    191   85   0    15   75   53   30   0.143
    192   85   0    15   104  6    30   0.143
    193   85   0    15   165  53   30   0.143
    194   85   0    15   194  6    30   0.143
    195   85   0    15   255  53   30   0.143
    196   85   0    15   284  6    30   0.143
    197   85   0    15   345  53   30   0.143
    198   85   39   15   4    54   15   0.112
    199   85   39   15   85   5    45   0.112
    200   85   39   15   94   54   15   0.112
    201   85   39   15   175  5    45   0.112
    202   85   39   15   184  54   15   0.112
    203   85   39   15   265  5    45   0.112
    204   85   39   15   274  54   15   0.112
    205   85   39   15   355  5    45   0.112
    __________________________________________________________________________

A still further modification is shown in FIG. 6. This golf ball has 422 dimples, all dimples having the same diameter of 0.143 inch and the same depth of 0.0103 inch. The dimples are arranged in a configuration so as to provide a dimple-free equatorial line, with each hemisphere of the ball having six identical dimpled substantially mating sections with a common dimple at each pole. FIG. 6 shows two mating sections having dimples 1 and 2, respectively. Each section comprises six dimples lying substantially along a line parallel with but spaced from the equatorial line, 29 dimples between the six dimples and the common polar dimple, with the outer dimples of each of said sections lying on modified sinusoidal lines 113 and 115.

Since only one diameter is used for all dimples, some small percentage of overlap occurs in order to provide substantial surface coverage with the dimples. For this particular pattern, there is an 11.4% (48) dimple overlap with a 73.2% coverage of the surface area of the ball. Overlap is determined by finding the number of dimples having an edge overlapping any other dimple and dividing that number by the total number of dimples on the ball, such number being expressed as a percentage.

There follows the coordinates for the dimple pattern of the 422 dimple ball having one size of dimples:

    __________________________________________________________________________
    DIMPLE
          LATITUDE       LONGITUDE      DIMPLE
    NUMBER
          Degrees
               Minutes
                    Seconds
                         Degrees
                              Minutes
                                   Seconds
                                        DIAMETER
    __________________________________________________________________________
     1     0   0    0    30   0    0    0.143
     2    10   25   0    30   0    0    0.143
     3    10   25   0    90   0    0    0.143
     4    10   25   0    150  0    0    0.143
     5    10   25   0    210  0    0    0.143
     6    10   25   0    270  0    0    0.143
     7    10   25   0    330  0    0    0.143
     8    18   17   45   0    0    0    0.143
     9    18   17   45   60   0    0    0.143
     10   18   17   45   120  0    0    0.143
     11   18   17   45   180  0    0    0.143
     12   18   17   45   240  0    0    0.143
     13   18   17   45   300  0    0    0.143
     14   20   49   45   30   0    0    0.143
     15   20   49   45   90   0    0    0.143
     16   20   49   45   150  0    0    0.143
     17   20   49   45   210  0    0    0.143
     18   20   49   45   270  0    0    0.143
     19   20   49   45   330  0    0    0.143
     20   27   43   15   49   19   0    0.143
     21   27   43   15   109  19   0    0.143
     22   27   43   15   169  19   0    0.143
     23   27   43   15   229  19   0    0.143
     24   27   43   15   289  19   0    0.143
     25   27   43   15   349  19   0    0.143
     26   27   43   30   10   40   45   0.143
     27   27   43   30   70   40   45   0.143
     28   27   43   30   130  40   45   0.143
     29   27   43   30   190  40   45   0.143
     30   27   43   30   250  40   45   0.143
     31   27   43   30   310  40   45   0.143
     32   30   48   45   30   0    0    0.143
     33   30   48   45   90   0    0    0.143
     34   30   48   45   150  0    0    0.143
     35   30   48   45   210  0    0    0.143
     36   30   48   45   270  0    0    0.143
     37   30   48   45   330  0    0    0.143
     38   39   25   30   7    34   30   0.143
     39   39   25   30   52   25   30   0.143
     40   39   25   30   67   34   30   0.143
     41   39   25   30   112  25   30   0.143
     42   39   25   30   127  34   30   0.143
     43   39   25   30   172  25   30   0.143
     44   39   25   30   187  34   30   0.143
     45   39   25   30   232  25   30   0.143
     46   39   25   30   247  34   30   0.143
     47   39   25   30   292  25   30   0.143
     48   39   25   30   307  34   30   0.143
     49   39   25   30   352  25   30   0.143
     50   39   39   15   22   13   30   0.143
     51   39   39   15   82   13   30   0.143
     52   39   39   15   142  13   30   0.143
     53   39   39   15   202  13   30   0.143
     54   39   39   15   262  13   30   0.143
     55   39   39   15   322  13   30   0.143
     56   39   39   15   37   46   30   0.143
     57   39   39   15   97   46   30   0.143
     58   39   39   15   157  46   30   0.143
     59   39   39   15   217  46   30   0.143
     60   39   39   15   277  46   30   0.143
     61   39   39   15   337  46   30   0.143
     62   48   35   15   13   42   45   0.143
     63   48   35   15   46   17   15   0.143
     64   48   35   15   73   42   45   0.143
     65   48   35   15   106  17   15   0.143
     66   48   36   15   133  42   45   0.143
     67   48   35   15   166  17   15   0.143
     68   48   35   15   193  42   45   0.143
     69   48   35   15   226  17   15   0.143
     70   48   35   15   253  42   45   0.143
     71   48   35   15   286  17   15   0.143
     72   48   35   15   313  42   45   0.143
     73   48   35   15   346  17   15   0.143
     74   49   19   0    60   0    0    0.143
     75   49   19   0    120  0    0    0.143
     76   49   19   0    180  0    0    0.143
     77   49   19   0    240  0    0    0.143
     78   49   19   0    300  0    0    0.143
     79   49   19   0    360  0    0    0.143
     80   49   40   30   30   0    0    0.143
     81   49   40   30   90   0    0    0.143
     82   49   40   30   150  0    0    0.143
     83   49   40   30   210  0    0    0.143
     84   49   40   30   270  0    0    0.143
     85   49   40   30   330  0    0    0.143
     86   58   1    30   18   41   30   0.143
     87   58   1    30   41   18   30   0.143
     88   58   1    30   78   41   30   0.143
     89   58   1    30   101  18   30   0.143
     90   58   1    30   138  41   30   0.143
     91   58   1    30   161  18   30   0.143
     92   58   1    30   198  41   30   0.143
     93   58   1    30   221  18   30   0.143
     94   58   1    30   258  41   30   0.143
     95   58   1    30   281  18   30   0.143
     96   58   1    30   318  41   30   0.143
     97   58   1    30   341  18   30   0.143
     98   58   14   15   6    6    15   0.143
     99   58   14   15   53   53   45   0.143
    100   58   14   15   66   6    15   0.143
    101   58   14   15   113  53   45   0.143
    102   58   14   15   126  6    15   0.143
    103   58   14   15   173  53   45   0.143
    104   58   14   15   186  6    15   0.143
    105   58   14   15   233  53   45   0.143
    106   58   14   15   246  6    15   0.143
    107   58   14   15   293  53   45   0.143
    108   58   14   15   306  6    15   0.143
    109   58   14   15   353  53   45   0.143
    110   60   8    15   30   0    0    0.143
    111   60   8    15   90   0    0    0.143
    112   50   8    15   150  0    0    0.143
    113   60   8    15   210  0    0    0.143
    114   60   8    15   270  0    0    0.143
    115   60   8    15   330  0    0    0.143
    116   67   3    0    11   19   15   0.143
    117   67   3    0    48   40   45   0.143
    118   67   3    0    71   19   15   0.143
    119   67   3    0    108  40   45   0.143
    120   67   3    0    131  19   15   0.143
    121   67   3    0    168  40   45   0.143
    122   67   3    0    191  19   15   0.143
    123   67   3    0    228  40   45   0.143
    124   67   3    0    251  19   15   0.143
    125   67   3    0    288  40   45   0.143
    126   67   3    0    311  19   15   0.143
    127   67   3    0    348  40   45   0.143
    128   67   15   45   0    0    0    0.143
    129   67   15   45   60   0    0    0.143
    130   67   15   45   120  0    0    0.143
    131   67   15   45   180  0    0    0.143
    132   67   15   45   240  0    0    0.143
    133   67   15   45   300  0    0    0.143
    134   67   39   30   22   36   30   0.143
    135   67   39   30   37   23   30   0.143
    136   67   39   30   82   36   30   0.143
    137   67   39   30   97   23   30   0.143
    138   67   39   30   142  36   30   0.143
    139   67   39   30   157  23   30   0.143
    140   67   39   30   202  36   30   0.143
    141   67   39   30   217  23   30   0.143
    142   67   39   30   262  36   30   0.143
    143   67   39   30   277  23   30   0.143
    144   67   39   30   322  36   30   0.143
    145   67   39   30   337  23   30   0.143
    146   74   20   30   30   0    0    0.143
    147   74   20   30   90   0    0    0.143
    148   74   20   30   150  0    0    0.143
    149   74   20   30   210  0    0    0.143
    150   74   20   30   270  0    0    0.143
    151   74   20   30   330  0    0    0.143
    152   75   54   0    5    20   45   0.143
    153   75   54   0    54   39   15   0.143
    154   75   54   0    65   20   45   0.143
    155   75   54   0    114  39   15   0.143
    156   75   54   0    125  20   45   0.143
    157   75   54   0    174  39   15   0.143
    158   75   54   0    185  20   45   0.143
    159   75   54   0    234  39   15   0.143
    160   75   54   0    245  20   45   0.143
    161   75   54   0    294  39   15   0.143
    162   75   54   0    305  20   45   0.143
    163   75   54   0    354  39   15   0.143
    164   75   57   0    16   16   30   0.143
    165   75   57   0    43   43   30   0.143
    166   75   57   0    76   16   30   0.143
    167   75   57   0    103  43   30   0.143
    168   75   57   0    136  16   30   0.143
    169   75   57   0    163  43   30   0.143
    170   75   57   0    196  16   30   0.143
    171   75   57   0    223  43   30   0.143
    172   75   57   0    256  16   30   0.143
    173   75   57   0    283  43   30   0.143
    174   75   57   0    316  16   30   0.143
    175   75   57   0    343  43   30   0.143
    176   84   17   45   0    0    0    0.143
    177   84   17   45   30   0    0    0.143
    178   84   17   45   60   0    0    0.143
    179   84   17   45   90   0    0    0.143
    180   84   17   45   120  0    0    0.143
    181   84   17   45   150  0    0    0.143
    182   84   17   45   180  0    0    0.143
    183   84   17   45   210  0    0    0.143
    184   84   17   45   240  0    0    0.143
    185   84   17   45   270  0    0    0.143
    186   84   17   45   300  0    0    0.143
    187   84   17   45   330  0    0    0.143
    188   84   19   45   10   17   30   0.143
    189   84   19   45   49   42   30   0.143
    190   84   19   45   70   17   30   0.143
    191   84   19   45   109  42   30   0.143
    192   84   19   45   130  17   30   0.143
    193   84   19   45   169  42   30   0.143
    194   84   19   45   190  17   30   0.143
    195   84   19   45   229  42   30   0.143
    196   84   19   45   250  17   30   0.143
    197   84   19   45   289  42   30   0.143
    198   84   19   45   310  17   30   0.143
    199   84   19   45   349  42   30   0.143
    200   85   1    15   20   9    30   0.143
    201   85   1    15   39   50   30   0.143
    202   85   1    15   80   9    30   0.143
    203   85   1    15   99   50   30   0.143
    204   85   1    15   140  9    30   0.143
    205   85   1    15   159  50   30   0.143
    206   85   1    15   200  9    30   0.143
    207   85   1    15   219  50   30   0.143
    208   85   1    15   260  9    30   0.143
    209   85   1    15   279  50   30   0.143
    210   85   1    15   320  9    30   0.143
    211   85   1    15   339  50   30   0.143
    __________________________________________________________________________

In addition to the advantages discussed above, there is easier access to the ball with the club in both the fairway and rough because of the ball's size. This easier access allows for cleaner hits. Further, the increased size and moment results in the ball's ability to hold the line during putting. Thus, by increasing the percentage of dimple coverage of the surface of the ball, the ball has the advantages attributable to the larger ball while having enhanced flight characteristics as compared to previous balls having enlarged diameters.

The particular core and cover combination of the present invention provide an improved ball for use by golfers having a slower club head speed.

The above description and drawings are illustrative only since obvious modifications could be made without departing from the invention, the scope of which is to be limited only by the following claims.

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Current U.S. Class:	473/377; 473/384
Intern'l Class:	A63B 037/12; A63B 037/14
Field of Search:	273/235 R,232 473/377,383,384,371,372,373,374,375,376